{
  "schema_version": "1.4.0",
  "id": "GHSA-8cgq-6mh2-7j6v",
  "modified": "2025-03-05T21:49:36Z",
  "published": "2025-03-04T15:27:06Z",
  "aliases": [
    "CVE-2025-27111"
  ],
  "summary": "Escape Sequence Injection vulnerability in Rack lead to Possible Log Injection",
  "details": "## Summary\n\n`Rack::Sendfile` can be exploited by crafting input that includes newline characters to manipulate log entries.\n\n## Details\n\nThe `Rack::Sendfile` middleware logs unsanitized header values from the `X-Sendfile-Type` header. An attacker can exploit this by injecting escape sequences (such as newline characters) into the header, resulting in log injection.\n\n## Impact\n\nThis vulnerability can distort log files, obscure attack traces, and complicate security auditing.\n\n## Mitigation\n\n- Update to the latest version of Rack, or\n- Remove usage of `Rack::Sendfile`.",
  "severity": [
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rack"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.12"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rack"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "3.0"
            },
            {
              "fixed": "3.0.13"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rack"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "3.1"
            },
            {
              "fixed": "3.1.11"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rack/rack/security/advisories/GHSA-8cgq-6mh2-7j6v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27111"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rack/rack/commit/803aa221e8302719715e224f4476e438f2531a53"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rack/rack/commit/aeac570bb8080ca7b53b7f2e2f67498be7ebd30b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rack/rack/commit/b13bc6bfc7506aca3478dc5ac1c2ec6fc53f82a3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rack/rack"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2025-27111.yml"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-117",
      "CWE-93"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-04T15:27:06Z",
    "nvd_published_at": "2025-03-04T16:15:40Z"
  }
}